good

说明：  一个很好用的直流蜂鸣器单片机前台控制程序(a good use of DC buzzer SCM prospects control procedures)

esp8266的示范代码，51单片机的代码啦(Demonstration code for esp8266)

说明：  用于指导AD9361的器件说明，并指导如何通过AD9361搭建SDR平台。(It is used to guide the device description of AD9361 and how to build SDR platform through AD9361.)

ad 很全的封装库，新手必备。需要的马上下载哦。(altium designer13 pcb)

模拟电路讲义上册 总共201页 全书五个章节， 第一张晶体管 第二章运放 第三章振荡器 第四章模拟锁相 第五章数模转换 第六章滤波器 第七章反馈(A total of 201 pages of lecture notes for analog circuits There are five chapters in the book. The first transistor The second chapter is op amp. The third chapter oscillator The fourth chapter is analog phase-locked. The fifth chapter is digital to analog conversion. The sixth chapter filter The seventh chapter feedback)

PN532在STM32上的读写器模式，能读写普通卡的UID，并通过LCD进行显示UID(PN532 on STM32 reader mode, you can read and write ordinary card UID, UID and displayed via LCD)

时钟芯片DS1302的MSP430的驱动程序，模块化书写，很好调用！(DS1302 clock chip MSP430 drivers, modular writing, good call!)

基于STM32的DSPIC芯片的步进电机驱动，意法官方库。(DSPIC based on the STM32 chip stepper motor driver, STMicroelectronics official repository.)

这是一个楼禁门宇系统的程序，经过调试仿真，结果良好，但是有待改进(This is a building ban door-yu system procedures, after debugging emulator with good results, but could be improved)

容栅传感器 读数程序 (Capacitive sensor reading program)